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Copper River and Knik River Bathymetric Surveys at Select Alaska Highway Bridges near Flag Point and Butte, Alaska, 2020

January 11, 2021

In 2020, the Alaska Science Center and the Idaho Water Science Center conducted bathymetric surveys at three highway bridge structures. The bridge structures (NBI 331 and 1187) at Flag Point near Cordova, AK are located on Alaska State Route 10 (commonly referred to as the Copper River Highway). Bridge structure NBI 539 on the Knik River is located on the Old Glenn Hwy near Butte, AK. These bathymetry data generally include complete coverage for upstream and downstream channels, except for extreme shallow areas along banks, where structures limited boat access, or where data was removed during post-processing. Bridges 1187, 331, and 539 are scour-critical bridges, and 1187 and 539 are part of the Alaska Science Center's real-time bridge scour monitoring program. High-resolution bathymetric data were requested to provide representation of streambed elevations near the bridge foundations to better evaluate scour and sediment transport in each reach.

Citation Information

Publication Year 2021
Title Copper River and Knik River Bathymetric Surveys at Select Alaska Highway Bridges near Flag Point and Butte, Alaska, 2020
DOI 10.5066/P9ED5AIK
Authors Dudunake Taylor J, Beebee Robin A, Conaway Jeff
Product Type Data Release
Record Source USGS Digital Object Identifier Catalog
USGS Organization Idaho Water Science Center

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